So I decided to get some chrono numbers today to see the velocity of the good defense and hunting ammo in various platforms. I found the velocity for ammo out of the MPX with 8" barrel, as well as Glock 19 gen4, my BCM 9" 300 Blackout, 11.5" BCM 5.56, and 16" BCM recce type rifle. All platforms were suppressed and chrono was at 8 feet from muzzle. All are measured in feet per second fps. I was amazed at how little difference there was in fps with the Federal HST in +p and not. Thought y'all might be interested to save $100 per case on regular 147 HST instead of +P stuff. Also, clearly the 9" blackout is still the best gun ever considering the ballistics compared to the MPX and its the same length when suppressed. Also realized that the difference in MPX and G19 are not significant, so cutting the MPX barrel down to 5 inches probably won't make much of a difference in velocity, and will save 3" of length. I will definitely be doing that at some point.

16” BCM =  Fiocchi 50 varmint - 2,720.
Black Hills 77 TMK - 2,654

11.5” BCM = Fiocchi 50 Varmint - 2,518
       Black Hills 77 TMK - 2,460
        Federal Fusion MSR 62gr - 2,554

MK18 = Fiocchi 50 Varmint - 2230
           Wolf Gold 55gr FMJ - 2518

9” BCM BLK = Barnes 110 TAC-TX - 2,132

MPX = Federal 147 HST - 1,059
       Federal 147+P HST - 1,063
       Speer 147 Lawman FMJ - 1,054
       Winchester 124+P T-series - 1,274

Glock 19 = Federal 147 HST - 1,032
         Federal 147+P HST - 1,043
         Speer 147 Lawman FMJ - 962
        Winchester 124+P T-series - 1,205

Thanks for sharing.   Looks like the HST +p is not worth the price premium.

Great info Thanks!!!

Thanks for putting in the work! I was curious the boost 8inch give ya over a G19 esp with my go to 147 HST. Now cut that MPX barrel down to 4.5-5 and chrono it again

Thanks for the data. Glad my chopped 5" will still be effective for HD.

I thought everyone knew that.  If I sell you a round that is subsonic, and the exact same round as +p....but is still subsonic.......

Wait...I just sold you the same damn thing!

I carry 147 HST exclusively and have had nearly identical chrono results out of my 4.5" MPX suppressed.  Velocities vary between 1030 and 1060 fps with a happy average around 1045.

Additionally, when chrono'd from my G19 the 147 HST, is again only slightly slower, averaging around 1025.

I just received another 1000rd shipment of 147 HST a couple days ago so I'll probably do some more chrono tests to see if there's any difference between the lots.